A balloon is initially full of air, but then it springs a leak. It leaks at a constant rate of 6 cubic inches per minute. After a while the leak is patched, a pump is attached, and the balloon is re-inflated to its original volume. The pumping rate is constant at 7 cubic inches per minute. Let B denote the volume, in cubic inches, of air in the balloon after t minutes.
?
A: Explain in practical terms the meaning of 
.
B: During the time the balloon is leaking air, what is the value of ?
C: During the time air is being pumped into the balloon, what is the value of ?
What will be an ideal response?
A: is the change in volume we expect over one minute.
?
B: 
cubic inches per minute.
C: 
cubic inches per minute.
You might also like to view...
Solve the equation for the indicated variable.5 - (n + 
x) = 5n for n
A. -40 n + 50
B. 
C. 
D. 
Solve the equation.
a - 
= -6
A. -11 B. -13 C. 11 D. 13
Find the asymptotes of the hyperbola.(x - 1)2 - 4(y + 4)2 = 4
A. y + 4 = ± 
(x - 1)
B. y - 1 = ± 
(x + 4)
C. y + 4 = ± 2(x - 1)
D. y - 4 = ± 2(x + 1)
Find the first five terms of the sequence.
?
, 
, 
, 
?
A. 
, 
, 
, 
, 
B. 
, 
, 
, 
, 
C. ?
, 
, 
, 
, 
D. ?
, 
, 
, 
, 
E. ?
, 
, 
, 
, 